"Two for Two" can be played on a single computer.
If you want two people on one computer, you need to prepare a set of keyboard and mouse (mouse and keyboard) + 1 controller, or 2 controllers, then open the game, select [Offline Mode] when selecting the mode, one person uses the keyboard and mouse, and the other Use a handle, or both people use a handle.
If you only have a keyboard and mouse, make sure you have connected two keyboards and two mice to the computer. However, it should be noted that two people cannot use the keyboard to play at the same time. You need to download a software called Keyboard.Splitter.2.2.0.0. Use To deceive the computer and let the second set of keyboard and mouse pretend to be a controller.
In addition to offline mode, "Two Players" also supports online remote play. You only need to invite friends through the "Remote Play" function of the Steam platform. You can also invite friends to play online together through in-game invite friends, friend passes, etc.
The above is the answer to the question of whether two people can play on one computer. I hope it will be helpful to you!